MESON Chess Problem Database

Problem Display
PID: 241845 (8/8/4Np2/5P2/7k/8/3p1K2/3Q4 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1930

8/8/4Np2/5P2/7k/8/3p1K2/3Q4

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kh3
      • 2.Qh5#
  • Tries
    • 1.Sd4?
      • 1...Kh3
        • 2.Qh5#
      • 1...Kg5!
    • 1.Sc5?
      • 1...Kh3
        • 2.Qh5#
      • 1...Kg5!
    • 1.Sc7?
      • 1...Kh3
        • 2.Qh5#
      • 1...Kg5!
    • 1.Sg7?
      • threat
        • 2.Qh5#
      • 1...Kh3
        • 2.Qh5#
      • 1...Kg5!
    • 1.Sd8?
      • 1...Kh3
        • 2.Qh5#
      • 1...Kg5!
    • 1.Sf8?
      • 1...Kh3
        • 2.Qh5#
      • 1...Kg5!
  • Keys
    • 1.Kf3!
      • threat
        • 2.Qh1#
      • 1...Kh3
        • 2.Qh1#
      • 1...Kh5
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • QAR(A)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • K(b);P-FLIGHT::QAR(A)
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